Re: [OAUTH-WG] dpop terminogly

Brian Campbell <bcampbell@pingidentity.com> Mon, 05 April 2021 22:58 UTC

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From: Brian Campbell <bcampbell@pingidentity.com>
Date: Mon, 5 Apr 2021 16:57:30 -0600
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To: Nikos Fotiou <fotiou@aueb.gr>
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Subject: Re: [OAUTH-WG] dpop terminogly
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Hi Nikos,

The https://tools.ietf.org/html/draft-fett-oauth-dpop-04 draft you've
referenced is several revisions out of date. Looking at
https://datatracker.ietf.org/doc/draft-ietf-oauth-dpop/ will show the
current latest, which is currently
https://www.ietf.org/archive/id/draft-ietf-oauth-dpop-02.html.

Some of that terminology has been cleaned up already. There are a couple
places where payload could be used rather than body that I'll change in the
next revision. I think that JWT header is probably more meaningful to most
readers than JOSE. And while it is technically a JOSE header, it's also a
JWS header, which is also a JWT header. This JWT is a JWS. Both have a
header. The same header.


On Sun, Apr 4, 2021 at 3:16 PM Nikos Fotiou <fotiou@aueb.gr> wrote:

> Hi I am wondering if the following terminology is more appropriate for the
> DPoP draft (https://tools.ietf.org/html/draft-fett-oauth-dpop-04):
> - Since a DPoP proof is a JWT encoded in a JWS may be it is better to say
> "DPoP proof payload" instead of "DPoP proof body" (end of page 4).
> - For the same reason use "JOSE header" instead of "JSON header"
> (beginning of page 5)
> - Moreover, here and there it is stated "the header of the JWT". AFAIU
> JWTs do not have headers themselves but the header is part of the JWS/JWE
> structure in which the JWT is encoded. So may be it is more appropriate to
> say "the JOSE header" instead of "the header of the JWT".
>
> Best,
> Nikos
>
> --
> Nikos Fotiou - http://pages.cs.aueb.gr/~fotiou
> Researcher - Mobile Multimedia Laboratory
> Athens University of Economics and Business
> https://mm.aueb.gr
>
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